350

300

--.. 250 _J .....____

0) ::::1.. .....___,. Operations

'--GJ

+---' 200

-------< on Standby >---

'--GJ Q_ V)

E (D '----0) 0 '--u E

150

100

50

0

Operations Resumed

October 2015

2014-2015 40 10

Mine Shaft Depth 450ft

20 30

2016

Canyon Mine Shaft Water Contamination

40 10

Mine Shaft Depth 1,400ft

20 30

2017

- Arsenic

40 10

Mine Shaft Depth 1,450ft

20 30

2018

- Uranium (dissolved)

Uranium EPA Drinking Water Maximum

Arsenic EPA Drinking Water Maximum

40 10

Mine Shaft Depth 1,470ft

20 30 40

2019

10 20 30 40

2020

GRAND CANYON TRUST

GRAPHIC BY STEPHANIE SMITH

Data Source: Canyon Mine Non-Storm Water lmpoundment 3.04 General Aquifer Protection Permit No. P-100333 Annual Report for 2016, 2017, 2018, 2019, & 2020